MAX487E Maxim Integrated Products, MAX487E Datasheet
MAX487E
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MAX487E Summary of contents
Page 1
... The MAX488E–MAX491E are designed for full- duplex communications, while the MAX481E, MAX483E, MAX485E, MAX487E, and MAX1487E are designed for half- duplex applications. For applications that are not ESD sen- sitive see the pin- and function-compatible MAX481, MAX483, MAX485, MAX487– ...
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... -7V IN -7V ≤ V ≤ 12V -4mA 200mV 4mA -200mV O ID 0.4V ≤ V ≤ 2.4V O -7V ≤ V ≤ 12V, all devices except CM MAX487E/MAX1487E -7V ≤ V ≤ 12V, MAX487E/MAX1487E CM MIN TYP MAX UNITS 1 0.2 V 2.0 V 0.8 V ±2 µA 1.0 mA -0.8 0. ...
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... MAX481E/MAX485E, CC – — – MAX1487E, CC – — – MAX483E MAX483E/MAX487E, CC – — – MAX487E – — – MAX481E/483E/487E 0V -7V ≤ V ≤12V (Note 4) O -7V ≤ V ≤12V (Note ≤ V ≤ and Z pins, tested using Human Body Model CONDITIONS Figures 10 and 12 54Ω, DIFF ...
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... S1 closed RL Figures 9 and 15 15pF, S2 closed < 50% of data period PLH PHL MAX483E/MAX487E (Note 5) MAX483E/MAX487E, Figures 11 and 13 100pF, S2 closed L MAX483E/MAX487E, Figures 11 and 13 100pF, S1 closed L MAX483E/MAX487E, Figures 9 and 15 15pF, S2 closed L MAX483E/MAX487E, Figures 9 and 15 15pF, S1 closed L MIN TYP MAX UNITS 45 100 ns 45 100 ns 225 ...
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... Note 3: Supply current specification is valid for loaded transmitters when DE = 0V. Note 4: Applies to peak current. See Typical Operating Characteristics. Note 5: The MAX481E/MAX483E/MAX487E are put into shutdown by bringing less than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are guaranteed to have entered shutdown ...
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... DRIVER OUTPUT LOW VOLTAGE 140 120 100 OUTPUT LOW VOLTAGE (V) MAX483E/MAX487E–MAX489E SUPPLY CURRENT vs. TEMPERATURE 600 500 400 MAX483E 300 MAX487E 200 MAX483E/MAX487E MAX488E/MAX489E 100 MAX483E/MAX487E -60 -40 - 100 TEMPERATURE (°C) OUTPUT CURRENT vs. DRIVER OUTPUT HIGH VOLTAGE -100 -90 -80 -70 -60 -50 -40 -30 -20 - ...
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... ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers ______________________________________________________________Pin Description PIN MAX481E/MAX483E MAX488E MAX485E/MAX487E MAX490E MAX1487E — 3 — — 5 — — — — — — — _______________________________________________________________________________________ NAME MAX489E MAX491E Receiver Output > 200mV, RO will be high < 200mV, RO will be low. – — – Receiver Output Enable enabled when ...
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... ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers TOP VIEW GND DIP/SO Figure 1. MAX481E/MAX483E/MAX485E/MAX487E/MAX1487E Pin Configuration and Typical Operating Circuit TOP VIEW GND DIP/SO Figure 2. MAX488E/MAX490E Pin Configuration and Typical Operating Circuit TOP VIEW N. N. GND GND 7 8 N.C. DIP/SO Figure 3. MAX489E/MAX491E Pin Configuration and Typical Operating Circuit ...
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... The MAX488E–MAX491E are full-duplex transceivers, while the MAX481E, MAX483E, MAX487E, and MAX1487E are half-duplex. In addition, driver- enable (DE) and receiver-enable (RE) pins are included on the MAX481E, MAX483E, MAX485E, MAX487E, MAX489E, MAX491E, and MAX1487E. When disabled, the driver and receiver outputs are high impedance. ±15kV ESD Protection ...
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ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers 1500 C D DISCHARGE CHARGE CURRENT LIMIT RESISTOR RESISTANCE HIGH C s STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 4. Human Body ESD Test Model R 50M to 100M R 330 ...
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ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers DIFF Figure 10. Driver/Receiver Timing Test Circuit PLH PHL 1/2 ...
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... RE is high and DE is low for less than 50ns. If the inputs are in this state for at least 600ns, the parts are guaranteed to enter shutdown. For the MAX481E, MAX483E, and MAX487E, the t and t enable times assume the part was not in the ZL low-power shutdown state (the MAX485E, MAX488E– ...
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... Typical propagation delays are shown in Figures 19–22 using Figure 18’s test circuit. The difference in receiver delay times, t typically under 13ns for the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E, and is typically less than 100ns for the MAX483E and MAX487E– RECEIVER MAX489E. R OUT ...
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... DO 2 s/div Figure 23. MAX481E/MAX485E/MAX490E/MAX491E/ MAX1487E System Differential Voltage at 110kHz Driving 4000ft of Cable 14 ______________________________________________________________________________________ B 500mV/div A 5V/div RO Figure 20. MAX481E/MAX485E/MAX490E/MAX491E/ MAX1487E Receiver t PLH B 500mV/div A 5V/div RO Figure 22. MAX483E/MAX487E–MAX489E Receiver t PHL - Figure 24. MAX483E/MAX1487E–MAX489E System Differential Voltage at 110kHz Driving 4000ft of Cable 25ns/div 200ns/div PLH 5V 0V ...
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... ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers 120 MAX481E MAX483E MAX485E MAX487E MAX1487E Figure 25. MAX481E/MAX483E/MAX485E/MAX487E/MAX1487E Typical Half-Duplex RS-485 Network A 120 120 NOTE: RE AND DE ON MAX489E/MAX491E ONLY. Figure 26. MAX488E–MAX491E Full-Duplex RS-485 Network ______________________________________________________________________________________ 120 120 120 MAX488E MAX489E MAX490E RE RO MAX491E 15 ...
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... MAX485EESA -40°C to +85° MAX487ECPA 0°C to +70°C 8 Plastic DIP MAX487ECSA 0°C to +70° MAX487EEPA -40°C to +85°C 8 Plastic DIP MAX487EESA -40°C to +85° MAX488ECPA 0°C to +70°C 8 Plastic DIP MAX488ECSA 0°C to +70° MAX488EEPA -40°C to +85°C 8 Plastic DIP MAX488EESA -40° ...